圆突矩形波导缝隙线阵设计

把常用的矩形波导一个宽面改成圆弧形构成的波导称为圆突矩形波导.这种波导与扇面波导相比:电性能相当;波导管结构更加简单,容易加工,便于安装.文中给出圆突矩形波导中主模场,圆曲面上纵向槽归一化谐振电导近似公式.设计了C和X波段波导曲面纵向谐振缝隙线阵,缝隙电压相位为同相分布,输入端匹配.实际测量了天线输入端电压驻波比和H面方向图,理论与实验相吻合.

Design of Slotted Linear Array in a Camrectangular Waveguide

A new waveguide which can change the wide wall of a rectangular waveguide into a symmetric arc wall is named as a camrectangular waveguide.Comparing to sectoral waveguide,the new waveguide has the same voltage characteristics and is easier to be produced and fixed.An approximate formula of the dominant mode fields and the normalized conductance of a longitudinal resonant slot cut in the curved wall of a camrectangular waveguide are given.A resonant slot linear array in C &; X band is designed,in which the slot voltage distribution is equiphase and the input is matched.The input voltage stationary ware ratio and the H plane pattern of the antenna are measured.The experimental results show the conformance with theoretical results.